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ExtremeBDS [4]
3 years ago
10

If the coordinates of a triangle are (-2,-2) (-1,1) (1,-1) what would be the coordinates if I rotated the triangle 180 degrees c

ounterclockwise about the origin?
Mathematics
1 answer:
EleoNora [17]3 years ago
5 0

Answer:

(2,2), (1,-1) and (-1,1).

Step-by-step explanation:

If a point {say P(h,k)} be rotated by 180° about the origin in counterclockwise then the new point generated P' will have coordinates (-h,-k).

Now, if the coordinates of a triangle are (-2,-2), (-1,1), (1,-1) and rotated 180 degrees counterclockwise about the origin then, the coordinates of the new triangle will be (2,2), (1,-1) and (-1,1). (Answer)

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A washer and a dryer cost $572 combined. The washer cost $78 less than the dryer. What is the cost of the dryer?
Anni [7]

Answer:

$325

Step-by-step explanation:

Let the dryer price be x, then the washer price would be x-78

x+x-78 = 572

2x = 650

x = 325

4 0
2 years ago
(2)/(3) =( 4)/( 3+x) help give brainliest if correct and explanation please
Juli2301 [7.4K]

Answer:

(2)/(3) =( 4)/( 3+x)

Cross multiply

2*(3+x)= 4*3

Solve bracket

6+2x=12

Subtract 6 from both sides

2x=6

Divide both sides by 2

x=3

Hope it helps :-)

7 0
3 years ago
Read 2 more answers
Tan^2 x+sec^2 x=1 for all values of x.<br> True or False
gogolik [260]
False 

because tan^2 45 =  1^2 = 1
and sec^2 x =  1/ cos^2 45  =  (sqrt2)^2 = 2

so the sum = 3
3 0
3 years ago
Read 2 more answers
1. How many ways can you arrange the letters in the word MOMMY
77julia77 [94]
1. \frac{5!}{3!} which is further simplified to 5*4 which is 20.


2. \frac{5}{5+3+2}= \frac{5}{10}= \frac{1}{2}




8 0
4 years ago
The breakdown of a sample of a chemical compound is represented by the function p(t) = 500 (0.25)^t, where p(t) represents the n
ludmilkaskok [199]

Given:

The function is:

p(t)=500(0.25)^t

Where p(t) represents the number of milligrams of the substance and t represents the time.

To find:

The correct explanation for the number 0.25 and 500 in the given function.

Solution:

The general exponential function is:

y=ab^x           ...(i)

Where, a is the initial value and b is the growth/decay factor. If 0, then decay factor and if b>1, then growth factor.

We have,

p(t)=500(0.25)^t           ...(ii)

On comparing (i) and (ii), we get

a=500, it means initial there are 500 milligrams of the substance.

b=0.25, this value is less than 1, it means the substance is decreasing by a factor of 0.25.

Therefore, 0.25 means the substance is decreasing by a factor of 0.25 and 500 means the initial value of substance is 500 milligram.

3 0
3 years ago
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